Hi all,
I never successfully auditioned for a band before. I currently play in my church's praise team, but I didn't have to audition to join. I unsuccessfully auditioned for a band when I was ultra new to bass about 30 years ago, but bombed due to not knowing crap about anything. Since then I've learned a lot songs and tuned my ear well enough to pick out the bass lines and know what notes are being played, but I have never taken time to learn to read notes, memorize all the scales, and the like.
Try some chill jam sessions in your area. (all I can think of that wasn't mentioned already)
I feel your pain with the church praise team. Whole notes on root notes of chords can hold a player back if one doesn't diversify (this happened to me). As musicians, I think we should be able to play any style. I'm working up my skills from crap to be able to play other stuff.
And it's probably already mentioned... but play with a drum beat (aux port, or however you can) to get tight with the beat. No matter the style, this seems fairly important. (I recently got an audio interface, and the drummer on garage band is helpful).

Lol